Spring-scale.



SPRING SCALE.

' APPLIOA'I'ION PILED JUNE 8, 1910.

Patented Feb. 14, 1911.

CHARLES H. COLSON, OF SHELDAHL, IOWA.

SPRING-SCALE.

Specification of Letters Patent.

Patented Feb. 14., 1911.

Application filed. June 8, 1910. Serial No. 565,707.

To all whom it may concern:

Be it known that I, Crmnnns II. CoLsoN, a citizen of the United States,residing at Sheldahl, county of Folk, and State of Iowa, have inventedcertain new and useful Improvements in Spring-Scales, of which thefollowing is a specification.

My invention relates to improvements 111 spring scales, the object ofthe invention being the production of a spring scale which shall be sodesigned as to be capable of serving as an advertising medium as well asfor weighing purposes.

A further object of my invention is to provide a device of the characterstated which shall be simple of construction, inexpensive tomanufacture, strong and durable, and etlieicnt in operation.

Other objects will appear hereinafter.

With these objects in view my invention consists in the novelconstruction and arrangement of parts which will be hereinafter fullydescribed and more particularly pointed out in the appended claims.

My invention will be more readily under stood by reference to theaccompanying drawing forming a part of this specification, and in which,

Figure 1 is a perspective view of my improved spring scale in itspreferred form, and Fig. 2 is acentral vertical section thereof.

The preferred form of my invention as illustrated in the drawingcomprises a rec tangular sheet metal casing 1 having openings 2 in theopposite sides thereof. Secured by means of screws 3 and in the interiorof the casing at the top and bottom thereof are wooden blocks 4 and 5respectively. A screw-eye 6 is screwed into the block l, and suspendedtherefrom is a tension helical spring 7 the lower end of which engages ascrew-eye S screwed into the vertically slidable block 9. A rod 10having a hook 11 at its lower extremity is screwed into the under sideof the block 9 as shown in Fig. 2, the elongated perforation 12 beingprovided in the block 5 which serves as a guide for said rod. Interposedbetween the blocks 5 and 9 is a. compression helical spring 13 whichcooperates with the spring 7 for weighing artieles attached to the hook11. The opposite faces 9 of the block 9 are graduated as shown in Fig.1, so that when said block is drawn downwardly by the weight of anarticle suspended from the hook 11 the weight of the article can bedetermined by the graduations 14- registering with the edge 1 1. Forinstance, if an article weighs five pounds, the horizontal graduationsadjacent the numoral live will register with the edge 1%, the latterbeing disposed horizontally and the line of graduations being inclinedthereto.

Hinges 15 comprising screw-eyes 16 are provided so that the device maybe attached to a wall 17 and be adapted to fold thereagainst when not inuse. The spaces above and below the openings 2 are available foradvertising purposes as shown in Fig. 1.

While I have shown what I deem to be the preferable form of my improvedspring scale I do not wish. to be limited thereto as there might bevarious changes and modilications made in the details of constructionand arrangement of parts described, and. hence I desire to avail myselfof such varia tions and modifications as will fairly fall within thespirit and scope of the appended claims.

Having described my invention what I claim as new and desire to secureby Letters Patent is:

1. In a spring scale, a rectangular casing having sight openings inopposite sides thereof; a block slidable in said casing and havingweight graduations on opposite sides thereof and visible through saidopenings; a spring supporting said block; and suspension means attachedto said block and depending from said casing, substantially asdescribed.

2. In. a spring scale, a rectangular casing having sight openings inopposite sides thereof; a block slidable in said casing and havingweight graduations on opposite sides thereof and visible through saidopenings; a spring supporting said block; suspension means attached tosaid block and depending from said casing; and a hinged support for saidcasing, substantially as described.

3. In a spring scale, a rectangular casing having blocks secured thereinat the top and bottom thereof, a tension helical spring suspended fromthe top block and a com pression helical spring supported by the bottomblock, a vertically slidable block interposed between said springs andsuspended from the first named spring, there being opposite openings insaid casing which render two opposite faces of said slidable blockvisible, graduations on said faces adapted to register with the loweredge of said openings, and a hooked rod secured to said slidable blockpassing through an elongated perforation or guide provided in saidbottom block, substantially as described.

i In spring scale, a casing having blocks secured therein at the top andbottom thereof, a tension helical spring suspended from the top blockand a compression helical spring supported by the bottom block, avertically slidable block interposed between said springs and suspendedfrom the firstnau'ied spring, there being opposite openings in saidcasing which render two opposite faces of said slidable block visible,graduations on said faces adapted to register with the lower edge ofsaid openings, at

rod provided with a hook at its lower extremity secured to said slidableblock and passing through an elongated perforation or guide provided insaid bottom block, and means for hinging said casing to a wall or othersupport, said lower edge being disposed horizontally and saidgraduations being in a line inclined thereto.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CHARLES H. COLSON.

Witnesses:

HELEN F. Liners, Josiit'i R. H. Po'rrs.

